Cambridge UK: Cambridge University Press | When the mass varies due to accretion or ablation, [an alternate equation explicitly accounting for the changing mass] should be used |
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Any single force is only one aspect of a mutual interaction between two bodies | "On the use and abuse of Newton's second law for variable mass problems" |
Hannah, J, Hillier, M J, Applied Mechanics, p221, Pitman Paperbacks, 1971• I]t is essential to deal with the same set of particles throughout the time interval[.
Cambridge UK: Cambridge University Press | |
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I Bernard Cohen Peter M | Celestial Mechanics and Dynamical Astronomy |